This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / powerpc / boot / flatdevtree.h

diff --git a/arch/powerpc/boot/flatdevtree.h b/arch/powerpc/boot/flatdevtree.h
new file mode 100644 (file)
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+++ b/arch/powerpc/boot/flatdevtree.h
@@ -0,0 +1,106 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef FLATDEVTREE_H
+#define FLATDEVTREE_H
+
+#include "flatdevtree_env.h"
+
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER            0xd00dfeed      /* marker */
+#define OF_DT_BEGIN_NODE        0x1     /* Start of node, full name */
+#define OF_DT_END_NODE          0x2     /* End node */
+#define OF_DT_PROP              0x3     /* Property: name off, size, content */
+#define OF_DT_NOP               0x4     /* nop */
+#define OF_DT_END               0x9
+
+#define OF_DT_VERSION           0x10
+
+struct boot_param_header {
+       u32 magic;              /* magic word OF_DT_HEADER */
+       u32 totalsize;          /* total size of DT block */
+       u32 off_dt_struct;      /* offset to structure */
+       u32 off_dt_strings;     /* offset to strings */
+       u32 off_mem_rsvmap;     /* offset to memory reserve map */
+       u32 version;            /* format version */
+       u32 last_comp_version;  /* last compatible version */
+       /* version 2 fields below */
+       u32 boot_cpuid_phys;    /* Physical CPU id we're booting on */
+       /* version 3 fields below */
+       u32 dt_strings_size;    /* size of the DT strings block */
+};
+
+struct ft_reserve {
+       u64 start;
+       u64 len;
+};
+
+struct ft_region {
+       char *start;
+       unsigned long size;
+};
+
+enum ft_rgn_id {
+       FT_RSVMAP,
+       FT_STRUCT,
+       FT_STRINGS,
+       FT_N_REGION
+};
+
+#define FT_MAX_DEPTH   50
+
+struct ft_cxt {
+       struct boot_param_header *bph;
+       int max_size;           /* maximum size of tree */
+       int isordered;          /* everything in standard order */
+       void *(*realloc)(void *, unsigned long);
+       char *str_anchor;
+       char *p;                /* current insertion point in structs */
+       struct ft_region rgn[FT_N_REGION];
+       void *genealogy[FT_MAX_DEPTH+1];
+       char **node_tbl;
+       unsigned int node_max;
+       unsigned int nodes_used;
+};
+
+int ft_begin_node(struct ft_cxt *cxt, const char *name);
+void ft_end_node(struct ft_cxt *cxt);
+
+void ft_begin_tree(struct ft_cxt *cxt);
+void ft_end_tree(struct ft_cxt *cxt);
+
+void ft_nop(struct ft_cxt *cxt);
+int ft_prop(struct ft_cxt *cxt, const char *name,
+           const void *data, unsigned int sz);
+int ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
+int ft_prop_int(struct ft_cxt *cxt, const char *name, unsigned int val);
+void ft_begin(struct ft_cxt *cxt, void *blob, unsigned int max_size,
+             void *(*realloc_fn)(void *, unsigned long));
+int ft_open(struct ft_cxt *cxt, void *blob, unsigned int max_size,
+               unsigned int max_find_device,
+               void *(*realloc_fn)(void *, unsigned long));
+int ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
+
+void ft_dump_blob(const void *bphp);
+void ft_merge_blob(struct ft_cxt *cxt, void *blob);
+void *ft_find_device(struct ft_cxt *cxt, const char *srch_path);
+void *ft_find_descendent(struct ft_cxt *cxt, void *top, const char *srch_path);
+int ft_get_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
+               void *buf, const unsigned int buflen);
+int ft_set_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
+               const void *buf, const unsigned int buflen);
+
+#endif /* FLATDEVTREE_H */